EP1156076A4 - Porous film and process for producing the same - Google Patents

Porous film and process for producing the same

Info

Publication number
EP1156076A4
EP1156076A4 EP00981800A EP00981800A EP1156076A4 EP 1156076 A4 EP1156076 A4 EP 1156076A4 EP 00981800 A EP00981800 A EP 00981800A EP 00981800 A EP00981800 A EP 00981800A EP 1156076 A4 EP1156076 A4 EP 1156076A4
Authority
EP
European Patent Office
Prior art keywords
porous film
producing
same
composition
density polyethylene
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00981800A
Other languages
German (de)
French (fr)
Other versions
EP1156076B1 (en
EP1156076A1 (en
Inventor
Shigeru Yano
Mindiaw Wang
Taroh Ichikawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Chemicals Inc
Original Assignee
Mitsui Chemicals Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsui Chemicals Inc filed Critical Mitsui Chemicals Inc
Publication of EP1156076A1 publication Critical patent/EP1156076A1/en
Publication of EP1156076A4 publication Critical patent/EP1156076A4/en
Application granted granted Critical
Publication of EP1156076B1 publication Critical patent/EP1156076B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
    • C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/08—Copolymers of ethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethene
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S521/00—Synthetic resins or natural rubbers -- part of the class 520 series
    • Y10S521/908—Nucleating agent for cellular product
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249978—Voids specified as micro
    • Y10T428/249979—Specified thickness of void-containing component [absolute or relative] or numerical cell dimension
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249986—Void-containing component contains also a solid fiber or solid particle

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

A porous film which is excellent in moisture permeability, flexibility, and oozing resistance; and a process in which a porous film having such properties can be produced through high-speed film formation and stretching. The porous film is formed from a composition comprising 25 to 55 wt.% polyolefin resin and 75 to 45 wt.% inorganic filler. It is characterized in that the polyolefin resin comprises 98 to 70 wt.% linear low-density polyethylene and 2 to 30 wt.% branched low-density polyethylene and further contains a liquid ethylene/a-olefin oligomer in an amount of 0.5 to 5 parts by weight per 100 parts by weight of the composition.
EP20000981800 1999-12-22 2000-12-18 Porous film and process for producing the same Expired - Lifetime EP1156076B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP36379099 1999-12-22
JP36379099 1999-12-22
PCT/JP2000/008954 WO2001046302A1 (en) 1999-12-22 2000-12-18 Porous film and process for producing the same

Publications (3)

Publication Number Publication Date
EP1156076A1 EP1156076A1 (en) 2001-11-21
EP1156076A4 true EP1156076A4 (en) 2005-03-02
EP1156076B1 EP1156076B1 (en) 2007-05-30

Family

ID=18480205

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000981800 Expired - Lifetime EP1156076B1 (en) 1999-12-22 2000-12-18 Porous film and process for producing the same

Country Status (6)

Country Link
US (1) US7153566B2 (en)
EP (1) EP1156076B1 (en)
KR (1) KR100448422B1 (en)
CN (1) CN1149252C (en)
DE (1) DE60035027T2 (en)
WO (1) WO2001046302A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6737158B1 (en) * 2002-10-30 2004-05-18 Gore Enterprise Holdings, Inc. Porous polymeric membrane toughened composites
CN100436528C (en) * 2003-10-02 2008-11-26 株式会社德山 Ethylene series polymer composition for high-speed stretching making film and method for mfg. porous film
KR100800284B1 (en) * 2006-07-06 2008-02-04 (주)대명화학 Permeability film
KR101458243B1 (en) * 2007-05-24 2014-11-04 닛토덴코 가부시키가이샤 Method for production of porous film, porous film, separator for non-aqueous electrolyte battery, and non-aqueous electrolyte battery using the separator
CA2862245C (en) * 2011-12-28 2016-10-25 Prime Polymer Co., Ltd. Ethylene polymer composition and shaped article of the same
US10457786B2 (en) * 2013-02-20 2019-10-29 Prime Polymer Co., Ltd. Biaxially-stretched film and ethylene polymer composition

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4793956A (en) * 1985-12-26 1988-12-27 Nippon Petrochemicals Company, Limited Process for preparing porous film or sheet

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6215090A (en) 1985-07-12 1987-01-23 川崎重工業株式会社 Method of washing, etc. by robot
JPH0662795B2 (en) 1986-05-28 1994-08-17 花王株式会社 Porous film
JPH0768393B2 (en) * 1986-05-28 1995-07-26 花王株式会社 Porous film
KR0147284B1 (en) * 1989-01-27 1998-08-17 스즈끼 세이지 Porous film and preparing method thereof
JPH0535734A (en) 1991-07-29 1993-02-12 Sharp Corp Information processor
JPH0699581A (en) 1992-09-21 1994-04-12 Seiko Epson Corp Production of nozzle plate
GB2283758A (en) * 1993-11-11 1995-05-17 Nsk Ltd Rust preventive lubricating oil
JPH11500171A (en) * 1995-02-16 1999-01-06 ミネソタ マイニング アンド マニュファクチャリング カンパニー Article comprising a pressure-sensitive adhesive having improved adhesion to plasticized polyvinyl chloride
US5945210A (en) * 1995-12-13 1999-08-31 Mitsui Chemicals, Inc. Porous film and preparation process thereof
JP3285501B2 (en) * 1996-10-25 2002-05-27 ポリプラスチックス株式会社 Polyacetal resin composition
JP4054120B2 (en) 1997-09-29 2008-02-27 三井化学株式会社 Porous film and method for producing the same

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4793956A (en) * 1985-12-26 1988-12-27 Nippon Petrochemicals Company, Limited Process for preparing porous film or sheet

Also Published As

Publication number Publication date
DE60035027T2 (en) 2008-01-17
WO2001046302A1 (en) 2001-06-28
US7153566B2 (en) 2006-12-26
DE60035027D1 (en) 2007-07-12
KR100448422B1 (en) 2004-09-13
CN1341138A (en) 2002-03-20
KR20010102226A (en) 2001-11-15
CN1149252C (en) 2004-05-12
EP1156076B1 (en) 2007-05-30
EP1156076A1 (en) 2001-11-21
US20020192455A1 (en) 2002-12-19

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